Sawing-machine.



proved sawing machine designed part1cuvided for it in the holder.- The connecting i5 chines, in order to increase the efiiciency and column is formed with a reduhed stud porwill be hereinafter more fully described and these bolts passes through one of the slots structed according to the best mode l have mov nt of th w, Th ti b r are machine parts broken away for convenience th ti b rs, but that these bolts may slide Figlh Fig. 6 is a view in elevation of the the work progresses, and as a peculiarrnover In the preferred embodiment of my init will be seen that the saw is cutting the thereof and adapted to receive the arms or hand saw.

. and then tightening up the set bolts 5, four .in cross section and formed with side wings 3' ED eras s tenant .3?

MOSES J. BLAIR, 0F TYNGSBOBO, MASSACHUSETTS.

SAWING=MAGHINE I 1 1g1 366 Specification of Letters latent. Patented May 2 jlgjig Application filed July 2?, 1915. Serial Ito. @332. I

To all whom it may concern: paced equidistant from the center post or Be it known that 1, Moses J BLAIN, a column 7 citizen of the United States of America, re- In Fig. 6 the relation of the column 7 to siding at Tyngsboro, in the county of Midthe holder is best illustrated. The lower re- 5 dlesex and State of Massachusetts, have induced end '8 of the column is passed vented new and useful Improvements in through an opening in the holder and a Sawing-Machines, of which the following collar 9 on this end 18 seated in the counteris a specification. I sunk opening in the holder so that the I The present invention relates to an imcolumn may revolve in the bearing 10 prolarly for the purpose of felling standing rod 11 from the engine or motor is connected timber. to the column by means of. a loose sleeve or The primary object of the invention is to band 12 fitted in the annular groove 13 in improve certain features of this class of mathe column, and the upper freeend of the simplify the construction and operation of tion 1 1. p

the machine. In its lateral reciprocating movement the The invention consists in certain novel saw holder is uided, through its slots 7, 8,- combinations and arrangements of parts as by means of t e long bolts 15 16. Each of claimed 7, 8, and each bolt is formedwith an elonin the accompanying drawings 1 have gated, right angularly extending head 17 illustrated one complete example of the which is slidable' in a groove 18 in the timphysical embodiment of my invention conbars 19, 19 extending at right angles to the 32 so far devised for the practical application joined by the tr ve bar 20 and 21 to of the principles of myinvention. form a supporting frame for the machine, Figure 1 is a plan view of the sawing maand it will be understood that the two bolts chine complete. Fig.2 is an end view of the 15 and 16 are laterally fined with relation to $5 of. illustration. Fig. 3 is a side view of the longitudinally of the timbers, t. 6. toward machine. Fig. 4 is an enlarged detail View andaway from the tree 22. partly in section showing the screw bar A sliding movement of the saw holder tofeed. Fig. 5 is a view takenat line 5- of ward the tree is necessary to feed the saw as pedestal or upright support through which ment is imparted to the saw, this sliding the lateral reciprocating motion is imparted movement is also accomplished in a novel to the saw holder and saw, and showing the manner. .lnsteadof the machine sawing the F connection of the pedestal to the holder. kerf in the tree on a straight tangential line, 99

Vention, the reciprocable saw holder 1 is kerf on a curve, and this is accomplished by preferably a flat metal plate of the proper imparting to the saw the so-called woodshape and formed with grooves as 2, 2 in-its mans swing, which is imparted to the saw outer edges extendlng from end to end when twomen are manipulating the usual bars 3, 3, between which the saw blade t is The gradual feed of the sawto the tree is I suspended and held. The saw blade me be accomplished throughthe medium of a pair Y adjusted toward or away from the ho der of screw bars 23, 24;- each passed through a by sliding the bars 3, 3 in their grooves 2 threaded nut25 seated in a box 26 tl-shape of which are shown each threaded into. one or walls 27 a ainst which the side flanges 28 of the cross straps 6 at the grooved sides of of the nuts 5 earv as the screw bar is turned.

the holder 1. To permit reciprocating These nuts are lcosel seated in the boxes so movement of the saw in a lateral direction, that they may he 11 ted therefrom and the 55 a pair of slots 7, 8 are provided near the boxes are fixed on the frame. In addition to rear of the holder, the slots being alined and the support in the nuts 25 each screw feed 2 l 1, 1e1,see

bar is revolubly journaled in a housing as of the cross arm 51 now turns the screw bar 29 or 30, and eachbar has fixed thereto a 23 and the left end of the saw holder 18 ratchet wheel as 31 32, and in Fig. 2 it will swung to the front and the right and wlthbe observed that these wheels have their rawn, causing the saw blade to complete teeth arranged in'opposite directions so that the curved kerf as shown in Fig. This 70 through these wheels the feed bar 24 may be action is termed the woodmans swing and turned over to the right and the feed bar 23 it facilitates. the manipulatlon and operaturned over to the left to gradually move tion of the saw in felling trees. As thus dethe saw'holder toward the tree. Each bar scribed the saw holder is fed step by step at has at its reduced end 33, a collar 34 and the alternate sides, and the bolt heads 17 travel 75 pin '35 passed through the collar and 'rein the grooves 18 toward the tree, the whole duced endholds the screw bar longitudinally movable part of the device moving forward immovable with relation to housing, but the on the frame of the machine with an interbar and its ratchet wheel are free to revolve mittent oscillating and laterally reciprocatwithin the housing. Each disk 29 and 30 ing motion. At the rear of the frame a pair so is radially bored to accommodate a pawl 36 of jacks 48 and 49 are illustrated for elevatwhich is held against its ratchet wheel by a ing this portion of the machine, and at the spring 37 and the bolt 38 closes the bore and front ofthe timbers 19 19 a pair of rollers holds the spring. Through this pawl and 50 50 are journaled in the pivoted brackets ratchet connection the feed bars are revolved 51 51. The pivotal points of the brackets 85 one to the right and the other to the left as are stud shafts 52 53 which carry bevel gears before stated. 54 55 respectively and these gears mesh with ach housing is formed with a longitudi complementary gears 56 57 on the respecnally extending perforated car 39' which is tive shafts 58 and 59 journaled in the frame hinged to perforated ears 40 of one of the of the machine andrevoluble in their bear-e 9o Slid6:'bl00k$ 41 42,. the hinge joint being ings 60 by handles 61. By means of set shown at 43. These blocks 41. 42 are vertiscrews 62 the stud shafts 52 53 are made cally perforated for their res ective bolts rigid with their respective brackets, so that 5 and 16 which ass throug the frame when the handles 61 are turned to revolve nuts 46 on the bolts securing the parts in oproller brackets are raised or lowered in altierative osition. r -tude and in. this 'manner the forward part he 'sks 29 andc are provided with of the frame may be ad usted to overcome upwardly projecting pintles as 47 and upon irregularities in the ground as the brackets these pintles the socketed posts 18 are are adjusted separately, or adjusted to the 100 swiveled. The posts 48 are pivoted at 49 proper height for sawing as required. 50 at the ends of a cross arm 51 and this The hinged joint of the screw bars perv cross arm is supported on the swivel conmits them to be raised from their boxes 26 nections and a bracket 52 projecting forto vertical position so that the machine may Wardly'from the centerof the arm and probe carried through the woods and in this 106 vided with a central slot 53 through which Y connection the handles 63 may be utilized. the stud 14 of the column 7 projects. In When the bars are raised it will be underbetween the laterally reciprocable saw boxes 26 and the dimension of the machine holder and the post 7 so that when the saw in one direction is thus diminished. 110 is. reciprocated laterally the cross arm 51 In Fig. 3 I have illustrated a telescopic swings on the stud 14 as a center. [Now as pole 64'which is one of a pair of such poles signing the saw holder. to be mov' g to the used so that whenthe tree has been sawed right in Fig. 1 it will be seen that the stud part way through the operator can extend 14 is carried to the right and the bracket the poleto lift the weight of the tree from 118. arm through its slotted connection to the the saw to facilitate its operation, and furstud is carried with it. The movement of ther to throw the tree from the saw when the cross arm which is flexibly supported it is felled. onits swivel points 47 revolvesthe' ratchet The machine is usually operated by two 55 32 and turns the bar 24 over to the right. men, and an engine or motor of small horse 1 0 isturning of this bar, which it will be power, while one horse-may draw the maremembered is threaded in the stationary chine from place to place, on a scoot when nut 25, causes the right side. of the saw it is to be transported.

holder to swing forward on the column '7 as What I claim is :iapivot, with the result that the saw blade 1. The combination in a sawing machine 12 cuts the rounded kerf' at the right side of] with its slotted frame, slotted laterally rethe tree as shown. As the motor reverses ciprocable saw holder and guide bolts in the reciprocating movement ofthe saw said slotted members, means for moving holder and pulls the holder to the left, the the saw, and means for alternately moving screw bar 24 remains idle, but the 'swinging said guide bolts to impart a combined recip 1" 30 timbers, the saw ho der and these blocks, the the shafts 58 or 59 it will be seen that the'95f rocating' and oscillating movement to the saw holder.

2. A sawing machin frame, a slotted laterally 5 holder, and spaced guide feed device including e comprising a slotted reciprocable saw bolts therefor, a a screw bar for each bolt, and means for turning said bars alternately.

3. A sawing machine comprising a slotted 10 frame, a slotted later ally reciprocable saw holder and spaced guide bolts therefor, a feed device including a screw bar for each bolt, and a ratchet wheel on each screw bar, a pair of posts carrying pawls to co-a'ct with the ratchets, a cross bar connecting the posts, 15 and means for reciprocating said cross bar a for turning said screw bars alternately.

In testimony whereof I affix my signature.

' MOSES J. BLAIN. 

